GUUS HIDDINK has denied that Diego Costa is an “idiot” on the pitch and defended his controversial Spanish striker.

Chelsea's Diego Costa is suspended for the visit of high-flying West Ham this Saturday

Costa, today left out of Spain’s squad for their friendly games against Italy and Romania, is banned for tomorrow’s Chelsea clash with West Ham.

Costa escaped punishment for allegedly biting Everton’s Gareth Barry in their FA Cup defeat last week, and for an apparent gesture to their fans – but could yet face further punishment from the Fa for his conduct after being dismissed by referee Michael Oliver.

Chelsea forward Diego Costa appears to bite Gareth Barry after earlier gesturing at fans as he left the field at half time during the Blues' FA Cup tie against Everton at Goodison Park

“What we all like is that he has to play as he's doing, with a lot of fire. We have to accept that. He knows he has to control himself, but if you're in a very hectic situation, it's difficult. We have examples of people going over the edge in heated situations.

“Of course, not happy and we'll see if he gets another ban. He was not happy with that, of course. But what can I say? He desperately likes to play.

“At first, everyone wanted to get on his kiss or 'bite', and Barry made a very good statement by saying what had not happened. Maybe there was a little bit of searching for where we can get Diego, and that was why he was frustrated.”

Hiddink added: “Diego has not been warned about his conduct by the board members. Of course I've spoken to him and we've talked many times about him playing on the edge and his reactions. We're still happy with his performances.

“But I can never guarantee whether or not he can be provoked. This is a technical matter inside our club. No one else. It is a matter of temperament and character.

“He has made a great contribution in terms of goals and assists which is why I defend him and I like him very much. But he has contributing a lot to the ressurection since December. It was a medical issue by the Spanish not to pick him, by their coaches and medical team. He still has a small problem.”